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authorLinus Torvalds <torvalds@linux-foundation.org>2012-07-23 16:08:40 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-07-23 16:08:40 -0700
commit5e512d0785e67d9ff41ee4af39bb71fc6161d5c9 (patch)
tree5b0decd6d5b11138a6614c4f7b17592aa76520c6 /arch/arm/mach-nomadik/i2c-8815nhk.c
parent451ce7f9cf2d17e34d5d64b76cac047a2a1a3b89 (diff)
parent233de298cb44e7dd300cd68f5abd7f1a75561fd5 (diff)
downloadop-kernel-dev-5e512d0785e67d9ff41ee4af39bb71fc6161d5c9.zip
op-kernel-dev-5e512d0785e67d9ff41ee4af39bb71fc6161d5c9.tar.gz
Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm soc-specific updates from Arnd Bergmann: "This is stuff that does not fit well into another category and in particular is not related to a particular board. The largest part in here is extending the am33xx support in the omap platform." Fix up trivial conflicts in arch/arm/mach-{imx/mach-mx35_3ds.c, tegra/Makefile} * tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (74 commits) ARM: LPC32xx: Add PWM support ARM: LPC32xx: Add PWM clock ARM: LPC32xx: Set system serial based on cpu unique id ARM: vexpress: Config option for early printk console ARM: vexpress: Add Device Tree for V2P-CA15_CA7 core tile ARM: vexpress: Convert V2P-CA15 Device Tree to 64 bit addresses ARM: vexpress: Add fixed regulator for SMSC ARM: vexpress: Add missing SP804 interrupt in motherboard's DTS files ARM: vexpress: Initial common clock support ARM: SAMSUNG: Introduce Kconfig variable for Samsung custom clk API ARM: EXYNOS: Add missing static storage class specifier in pmu.c file ARM: EXYNOS: Make combiner_init function static ARM: EXYNOS: Update HSOTG PHY clock setting for EXYNOS4X12 ARM: versatile: Make plat-versatile clock optional ARM: vexpress: Check master site in daughterboard's sysctl operations ARM: vexpress: remove automatic errata workaround selection ARM: LPC32xx: Adjust to pl08x DMA interface changes ARM: EXYNOS: Clear SYS_WDTRESET bit to use watchdog reset ARM: imx: fix mx51 ehci setup errors ARM: imx: make ehci power/oc polarities configurable ...
Diffstat (limited to 'arch/arm/mach-nomadik/i2c-8815nhk.c')
-rw-r--r--arch/arm/mach-nomadik/i2c-8815nhk.c38
1 files changed, 31 insertions, 7 deletions
diff --git a/arch/arm/mach-nomadik/i2c-8815nhk.c b/arch/arm/mach-nomadik/i2c-8815nhk.c
index 0fc2f6f..6d14454 100644
--- a/arch/arm/mach-nomadik/i2c-8815nhk.c
+++ b/arch/arm/mach-nomadik/i2c-8815nhk.c
@@ -5,6 +5,7 @@
#include <linux/i2c-gpio.h>
#include <linux/platform_device.h>
#include <plat/gpio-nomadik.h>
+#include <plat/pincfg.h>
/*
* There are two busses in the 8815NHK.
@@ -12,19 +13,27 @@
* use bit-bang through GPIO by now, to keep things simple
*/
+/* I2C0 connected to the STw4811 power management chip */
static struct i2c_gpio_platform_data nhk8815_i2c_data0 = {
/* keep defaults for timeouts; pins are push-pull bidirectional */
.scl_pin = 62,
.sda_pin = 63,
};
+/* I2C1 connected to various sensors */
static struct i2c_gpio_platform_data nhk8815_i2c_data1 = {
/* keep defaults for timeouts; pins are push-pull bidirectional */
.scl_pin = 53,
.sda_pin = 54,
};
-/* first bus: GPIO XX and YY */
+/* I2C2 connected to the USB portions of the STw4811 only */
+static struct i2c_gpio_platform_data nhk8815_i2c_data2 = {
+ /* keep defaults for timeouts; pins are push-pull bidirectional */
+ .scl_pin = 73,
+ .sda_pin = 74,
+};
+
static struct platform_device nhk8815_i2c_dev0 = {
.name = "i2c-gpio",
.id = 0,
@@ -32,7 +41,7 @@ static struct platform_device nhk8815_i2c_dev0 = {
.platform_data = &nhk8815_i2c_data0,
},
};
-/* second bus: GPIO XX and YY */
+
static struct platform_device nhk8815_i2c_dev1 = {
.name = "i2c-gpio",
.id = 1,
@@ -41,15 +50,29 @@ static struct platform_device nhk8815_i2c_dev1 = {
},
};
+static struct platform_device nhk8815_i2c_dev2 = {
+ .name = "i2c-gpio",
+ .id = 2,
+ .dev = {
+ .platform_data = &nhk8815_i2c_data2,
+ },
+};
+
+static pin_cfg_t cpu8815_pins_i2c[] = {
+ PIN_CFG_INPUT(62, GPIO, PULLUP),
+ PIN_CFG_INPUT(63, GPIO, PULLUP),
+ PIN_CFG_INPUT(53, GPIO, PULLUP),
+ PIN_CFG_INPUT(54, GPIO, PULLUP),
+ PIN_CFG_INPUT(73, GPIO, PULLUP),
+ PIN_CFG_INPUT(74, GPIO, PULLUP),
+};
+
static int __init nhk8815_i2c_init(void)
{
- nmk_gpio_set_mode(nhk8815_i2c_data0.scl_pin, NMK_GPIO_ALT_GPIO);
- nmk_gpio_set_mode(nhk8815_i2c_data0.sda_pin, NMK_GPIO_ALT_GPIO);
+ nmk_config_pins(cpu8815_pins_i2c, ARRAY_SIZE(cpu8815_pins_i2c));
platform_device_register(&nhk8815_i2c_dev0);
-
- nmk_gpio_set_mode(nhk8815_i2c_data1.scl_pin, NMK_GPIO_ALT_GPIO);
- nmk_gpio_set_mode(nhk8815_i2c_data1.sda_pin, NMK_GPIO_ALT_GPIO);
platform_device_register(&nhk8815_i2c_dev1);
+ platform_device_register(&nhk8815_i2c_dev2);
return 0;
}
@@ -58,6 +81,7 @@ static void __exit nhk8815_i2c_exit(void)
{
platform_device_unregister(&nhk8815_i2c_dev0);
platform_device_unregister(&nhk8815_i2c_dev1);
+ platform_device_unregister(&nhk8815_i2c_dev2);
return;
}
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